Rise Armament RA-140 AR-15/AR-10 Flat Super Sport Drop-in Trigger, Single Stage

Tired of your AR-15’s gritty, heavy stock trigger pull? Here’s the easy, budget-friendly way to give your rifle the trigger it so richly deserves. The RA-140 SST features a self-contained design that makes it easy and quick to install with no fine-tuning needed—and no gunsmithing required. The single-stage, 3.5-pound is a significant upgrade over stock, and the flat trigger blade provides enhanced control and better leverage.

PLEASE NOTE: KNS Anti-Rotate Pins recommended (but not required). KNS Anti-Rotate Pins prevent the trigger and hammer pins from “walking” loose while shooting. Additionally, the set screw should NOT be tampered with. Any attempt to modify the trigger will void the warranty.

• Fits AR-style platforms built to mil-spec dimensions (calibers include .223/5.56, .308, 6.5, 9mm, and more)
• Flat trigger blalde provides enhanced control and better leverage
• True drop-in installation, no gunsmithing required
• Non-adjustable 3.5-lb. trigger pull
• CNC machined from high-grade, heat-treated tool steel
• Black 8625 hardcoat anodized aluminum cassette
• Manufactured at Rise Armament®’s facility according to strict AS9100 aerospace requirements, which are more stringent than standard gun manufacturing requirements
• Includes anti-walk pins

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Key Specifications

• Item Number: 716831
• Fits: Most AR platformsn built to mil-spec dimensions
• Mfg. Number: RA-R140F